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Renewable energy sources such as wind farms and solar power plants are replacing conventional coal-based synchronous generators (SGs) to achieve net-zero carbon emissions worldwide. SGs play an important role in enhancing system strength in a power system to make it more stable during voltage/frequency disruptions. However, traditional coal-fired SGs are being decommissioned in many parts of the world, owing to stringent environmental regulations and low levelized cost of energy of renewables. Consequently, maintaining system strength in a renewable energy-dominated power system has become a major challenge, and without adequate mitigation techniques, low system strength can potentially cause widespread power outages. This paper provides an overview of system strength and its measurement techniques in a power system with a large number of renewable energy sources (RESs), for example solar and wind farms. The review includes the system strength measurement techniques, mitigation approaches, and future challenges.

The March 2021 issues focuses on Energy. With the UN’s COP26 conference on the horizon in November and talk of a ‘green recovery’ from the pandemic, contributions from our Energy Transition and Energy Materials Groups reflect the important role our members play in delivering the low-carbon energy mix of the future – safely and efficiently. As the 2050 UK net-zero target looms, our authors offer a level-headed and pragmatic discussion of the steps needed to get there, from timely investment in the complementary technological developments; materials innovations to propel renewables, hydrogen and nuclear energy sources; to the role of regulation and market forces in delivering renewable energy at capacity., CONTENTS, NEWS: 4 Framing mineral resource governance -- 6 Smashing nano-technique hardens metal -- 7 A fourth dimension to nanophotonics -- 8 Magnetically modified metamaterials -- 10 Inhibiting inflammation post hernia repairs -- 12 Can wearable electronics biodegrade? -- 13 Face masks hit the road -- 15 Quantum-ready? -- 17 Battery recipe with a pinch of salt, PROFESSIONAL DEVELOPMENT: 18 Open for business -- 22 Navigating commercialisation -- 23 Developing a materials world – why (not) us? -- 26 IOM3 Training Academy, FEATURES: 28 Sum of its parts. Unpicking the energy transition and the opportunities it brings to IOM3 members -- 32 In the mix. How can the UK’s electricity production achieve net-zero carbon emissions? -- 35 Connecting the dots. The next steps for UK renewables -- 39 Breaking through. Shining a light on photo-active materials and designing with intent -- 42 Sustaining safety. The changing regulatory landscape as renewables come to the fore -- 45 An Atlantic mirror. Exploring the offshore oil and gas discoveries transforming South America and Northwest Africa -- 51 Exergetics for our time. Exergy and exergetics for how we use materials and energy -- 55 On the down-low. Is the Vietnamese mining sector set to become a major player?, REGULARS: 27 Get talking -- 57 Letters -- 58 Spotlight -- 60 Diary dates -- 62 Books -- 63 Institute news

Airlines for America and its member carriers have pledged to make 3 billion gallons of sustainable aviation fuel (SAF) available to U.S. aircraft operators by 2030. This commitment is a part of the net-zero carbon emissions by 2050 program. The aviation industry along with support from the government is what is needed to make this goal a reality.

Airlines for America (A4A) announced the commitment of its member carriers to work across the aviation industry and government to achieve net-zero carbon emissions by 2050. Some A4A members have already put net-zero goals in place, which means that the infrastructure and operational capabilities need to be even more advanced, meaning more commitment is needed.